I think in some cases a charge is appropriate. I do not charge individuals whose background I know when acting independently.
When working on duty at the ATO, club members will get paperwork signed as part of their membership privileges.
For a walk in, who is not a club member and whose background I do not know, a charge of £25 is made by ATO to cover the time I spend checking, the resources used by the ATO and the storage of documents for a number of years.
I pushed for this due to a number of complicated cases that took up a significant amount of time which the ATO was effectively providing for free.